ixgbe: Rename some definitions, modify comment. No functional change.

Apply changes from FreeBSD's ix-3.3.31 and ixv-1.5.32.
- struct adapter *adapter -> struct ixgbe_softc *sc
- master -> primary
- black -> block

Update copyright to 2020.

FreeBSD: 8455e365f77f5b66ac9521dbcd690f79345ce147

Add missing __KERNEL_RCSID().

branches: 1.6.12;
Use bus_space_barrier() instead of x86 specific *fence instruction.
Written by riastradh@.

No functional change:

- Remove unused code.
- Remove extra spaces.
- KNF.

branches: 1.4.2; 1.4.8;
Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Update copyright to 2020.

FreeBSD: 8455e365f77f5b66ac9521dbcd690f79345ce147

Add missing __KERNEL_RCSID().

branches: 1.6.12;
Use bus_space_barrier() instead of x86 specific *fence instruction.
Written by riastradh@.

No functional change:

- Remove unused code.
- Remove extra spaces.
- KNF.

branches: 1.4.2; 1.4.8;
Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Add missing __KERNEL_RCSID().

Use bus_space_barrier() instead of x86 specific *fence instruction.
Written by riastradh@.

No functional change:

- Remove unused code.
- Remove extra spaces.
- KNF.

branches: 1.4.2; 1.4.8;
Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Use bus_space_barrier() instead of x86 specific *fence instruction.
Written by riastradh@.

No functional change:

- Remove unused code.
- Remove extra spaces.
- KNF.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

No functional change:

- Remove unused code.
- Remove extra spaces.
- KNF.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

Sync with the remaining part of FreeBSD r328265 except sfp_reinit stuff:
- Always schedule module intterrupt in ixgbe_config_link() when a device is
SFP+ based.
- Use not loop index but txr->me in ixv_initialize_{transmit,receive}_units().
It's required for VMDQ but NetBSD doesn't use it, so it's not a bug in
NetBSD.
- Simplify ixgbe_bp_wd_set(). No functional change.
- Whitespace.

Add some changes from ix-3.2.17.tar.gz and r328265. Not fully synchronized.
Some others (e.g. sfp cage interrupt and bypass adapter stuff) will be merged
later:
- Initialize firmware command buffer correctly in ixgbe_read_ee_hostif_X550()
and ixgbe_read_ee_hostif_buffer_X550(). These functions are used when reading
NVM.
- Fix a bug that ixgbe_mng_present() misunderstand management capability on
X550 and newer on some environment. X550 changed FWSM bit definition.
See X540 document and X550's document and compare them.
- Fix checksum calculation in ixgbe_set_fw_drv_ver_generic(). This function is
not used in NetBSD.
- Add some unused funtions.
- Whitespace fix.

branches: 1.2.2; 1.2.4;
- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4; 1.1.12;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

- Sync with FreeBSD r320688 (and up to r322865):
- Add C3000(Denvertion(-NS)) support.
- Add bypass function support for bypass adapters. Sysctls are provided.
Not tested because I have no any bypass adapter.
- ixv(4): set RSS mapping.
- Change EEE sysctl.
- ixv(4): Add TSOv6.
- ixv(4): Mailbox API 1.2 and more are implemented and comment says it
negotiate with 1.2 but it really does 1.1...
- Remove thermal test sysctl.
- Fix unknown bugs.
- Print driver feature capabilities and enable bits when verbose boot.

branches: 1.1.2; 1.1.4;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.

branches: 1.1.2;
Update ixg(4) and ixv(4) up to FreeBSD r292674:
- Add X552 SFP+ and X550T single port.
- Bug fixes.